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柿果实和叶片中可溶性单宁含量的年变化(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2015年06期
Page:
61-66
Column:
研究论文
publishdate:
2015-11-30

Article Info:/Info

Title:
Annual variation of soluble tannin in the fruits and leaves of persimmon
Article ID:
1000-2006(2015)06-0061-06
Author(s):
HAN Weijuan12 LI Jiaru12 LIANG Yuqin12 LI Huawei3 LI Chang12 FU Jianmin12*
1.Paulownia Research &
Development Center of China, Chinese Academy of Forestry, Zhengzhou 450003, China;
2.Non-timber Forestry Research &
Development Center, Chinese Academy of Forestry, Zhengzhou 450003, China;
3. College of Forestry, Nanjing Forestry University, Nanjing 210037, China
Keywords:
persimmon fruits persimmon leaves soluble tannin annual variation
Classification number :
S665.2
DOI:
10.3969/j.issn.1000-2006.2015.06.012
Document Code:
A
Abstract:
In order to reveal annual variation of soluble tannin contents in the fruits and leaves of persimmon, eleven varieties of samples were measured by Folin-Ciocalteu method including PCA, PCNA, PVNA and wild varieties. The results showed that there were abundant soluble tannin in persimmon fruits and leaves, and the contents fluctuated in the range of 0-70.92 mg/g and 5.99-65.49 mg/g during the entire monitored period, respectively. The contents of soluble tannin in fruits were decreased with the growth, and there were significant negative correlations with fresh weight, vertical diameter and transverse diameter, which indicated that the tannin cells dilution by fruit enlargement account for the loss of astringency on the tree. The soluble tannin contents in 11 varieties of persimmon leaves showed small difference and the annual variety trends were almost identical. In addition, the results also suggested that the optimum harvesting time promoting effective utilization of soluble tannin in persimmon leaves was from middle July to early August.

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Last Update: 2015-11-30